using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace Quanly_dethi
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            
        }

        private void buttonX1_Click(object sender, EventArgs e)
        {
            Random rd = new Random();
            labelX1.Text = rd.Next(100).ToString();
        }
    }
}